Home / 74,727.20-103,122.20-40,735.98

Finding the Fourth Proportional to 74,727.20, 103,122.20 and 40,735.98

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Solution

The fourth proportional to 74,727.20, 103,122.20 and 40,735.98 is: 56,214.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727.20 : 103,122.20 = 40,735.98 : x
  2. Step 2: Convert to fraction form
    74,727.20/103,122.20 = 40,735.98/x
  3. Step 3: Cross multiply
    74,727.20x = 103,122.20 × 40,735.98
  4. Step 4: Simplify right side
    74,727.20x = 4,200,783,876.76
  5. Step 5: Solve for x
    x = 4,200,783,876.76/74,727.20
  6. Step 6: Final answer
    x = 56,214.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.